What is the purpose of the OBD interface in a sedan?

1 Answers
LaAdrian
07/30/25 3:05am
The OBD interface in a car can monitor the working conditions of the engine's electronic control system and other functional modules during vehicle operation. By connecting the car's OBD interface to a computer, you can view real-time vehicle data and detect faults, providing convenience for car repairs, developing car-related functions, and modifying car equipment. Additional information about OBD is as follows: 1. The OBD onboard automatic diagnostic system continuously monitors whether the vehicle's emissions exceed standards based on the engine's operating conditions. 2. The OBD interface is typically a 16-pin female connector with a trapezoidal shape. 3. OBD monitors systems and components such as the engine, catalytic converter, particulate filter, oxygen sensor, emission control system, fuel system, EGR, and more in real-time.
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